Google Project Manager interview questions

Phone Interview: 1) Design a Washer and Dryer - You need to ask the interviewer questions about who the users would be. When I asked him, he said "The same sort of people who would buy a nest thermostat (Younger, more tech savvy and somewhat affluent). 2) How would you measure the success of Apple's WWDC event (This year vs Last Year). Note: The key here is to discern the difference between the event itself being better vs Apple releasing cooler stuff this year thereby getting more press coverage etc. 3) How would you improve Youtube Onsite: 1st Interview: 1) Latest trends in technology 2) What are the network implications of a handheld device meant for elementary schools kids 3) If Google has invented a way to make air travel 4x cheaper and 4x faster, what would you do with this technology? 2nd Interview: 1) Design an app for the dmv 2) Explain recursion to my grandma 3) You have an ecommerce site in Spain and you've just localized this and now see that traffic has reduced. What could be the reasons. 4) Give me 3 features you like about your favorite google product and 3 that you would improve. 3rd Interview: 1) How would you improve throughput of an airport by 100% 2) You've done all this stuff to improve throughput , what are the implications for the airport itself 3) How much storage space is required to host all the images of Google street view. 4) You see starbucks' on either side of the road sometimes, why do you think Starbucks Corp does this?

If you could redesign the NYC transit system without limitations, what would you do?